Today, AWS announces Cost Explorer historical data retention for accounts in billing groups.  

Customers can use AWS Billing Conductor and Billing Transfer to map accounts to billing groups, enabling them to view billing data priced at the pro forma rates supplied by the payer account or Bill-Transfer account. Previously, the billing group configuration resulted in restricted access to historical billing data (priced at AWS billable rates) for accounts mapped to billing groups.

With this launch, accounts included in billing groups retain access to their historical billing data in Cost Explorer at their original billable rates. Accounts previously on-boarded to Billing Conductor and Billing Transfer will gain access to their historical data with no additional action required. This enables reporting continuity for customers opting into AWS Billing Conductor and Billing Transfer.

Billing Transfer is available today in all AWS Regions, excluding the GovCloud, China (Beijing) and China (Ningxia) Regions.

To learn more about using Billing Transfer to centralize billing and cost management across your multi-organization environment, visit Billing Transfer product page, AWS Billing documentation, AWS Cost Management documentation, and news blog.